Garbage disposal apparatus



Jan 29, 1952 CHESTER 2,583,997

GARBAGE DISPOSAL APPARATUS Filed Oct. 23, 1946 Patented Jan. 29, 1952 UNITED STATES PATENT OFFICE 2,583,997 GARBAGE DISPOSAL APPARATUS Frank Chester, Santa Monica, Calif. Application October 23, 1946, Serial No. 705,093

2 Claims. (Cl. 241-46) My present invention relates to a garbage disposal apparatus, and particularly to improvements over my former application for such apparatus filed February 5, 1945, under Serial No. 576,285, which has become abandoned.

One of the principal objects of this invention is to provide an apparatus of this class whereby garbage, to be cut, broken up, ground, or comminuted, may be substantially suspended in continuously agitated water and caused to be 08.1? ried or forced thereby toward the means provided for cutting, breaking up. grinding, or comminuting the garbage.

An important object of this invention is to provide a tangentially arranged water connec tion for the garbage receptacle whereby the garbage suspended in the water may be forced con" tinuously to swirl in a path in which the cutting, grinding, or comminuting means is located.

Another important object of this invention is to provide a novel garbage receptacle for an apparatus of this class whereby the garbagemoving water, which is continuously forced thereinto, may be maintained at a safe height therein by a safety level overflow means, or whereby the pressure is released through a connection to the drain provided for the cut, ground, or comminuted garbage. v

A further important object of this invention is to provide a novel and simple cutting means for cutting, grinding, or comminuting the garbage, and also for feeding the same into a discharge outlet.

With these and other objects in view, as will appear hereinafter, I have devised a garbage disposal apparatus having certain novel features of construction, combination, and .arrangement of parts and portions, as will be hereinafter described in detail and particularly set forth in the i appended claims, reference being had to the accompanying drawings and to the characters of reference thereon, which form a part of this application, in which:

Fig. 1 is a side elevational view, partly in section, of my garbage disposal apparatus in one form;

Fig. 2 is a sectional view thereof in plan;

Fig. 3 is a fragmentary sectional view, similar to that of Fig. 2 but on a smaller scale, showing my garbage disposal apparatus in a slightly modi- "fied form;

Fig. 4 is an elevational view. partly in section, similar to that shown in Fig. 1 but on a reduced scale, showing my apparatus in another slightly modified form; and

Fig. 5 is a perspective view of the cutter, in a preferred form, employed in my garbage disposal apparatus.

My apparatus is provided with a receptacle I for receiving the garbage, or other substance, to be out up, broken up, ground, or comminuted, this receptacle having a large opening I at the upper end, substantially coextensive with the lateral dimension of the receptacle, for receiving such garbage, or the like. As shown, the receptacle is arranged in an opening A in a sink, table top, or the like, designated A, the latter member being substantially flush with the top of the receptacle. The opening l is normally closed by a cover 2.

At one side of the center of the bottom of the receptacle is a discharge opening l which is directed downwardly. This opening forms a shallow well in the receptacle at the bottom of which is provided a perforated plate 3, the upper surface of which is positioned slightly below the bottom of the receptacle. The bottom surrounding such discharge opening is inclined towards the same to facilitate the movement of garbage or drain the receptacle towards the discharge opening.

Within the shallow well is located a flat cutter 4, which appears substantially as a flat disc and is provided with upwardly directed and inclined blades 4 and downwardly directed and inclined blades 4 Both blades are inclined in the directionof rotation of the cutter. The former blades extend into the receptacle, for cutting, or continuously nipping or chopping at the product thereon. The latter blades are directed downwardly toward or against the perforated plate and perform a multiple function. They tend further to cut the product to facilitate forcing the product through the plate, and also tend to eject the product from below the cutter, such as hard substances, pieces of bone, and the like, back into the receptacle to be further worked upon by the upwardly directed blades 4 Both blades radiate from the center, and the upper blades are preferably longer than the lower.

Below the receptacle I is located the cutter drive means, which is shown as a motor 5, the shaft 5 of the motor extending upwardly through the discharge opening l and the plate 3 for supporting and rotating the cutter.

Below the discharge opening l is provided a. sump i into which the cut and comminuted product is discharged, and this sump is connected to the sewer by a drain pipe 6, which extends laterally from the sump and downwardly at the side of the motor 5.

To the receptacle I is connected a water pipe I for supplying water, under pressure, to the receptacle. This water pipe is connected tangentially through the side wall of the receptacle outer portions of the water and garbage within the receptacle in a direction opposed to the direction of rotation of the cutter, while the water and garbage at the middle portion of the receptacle moves in the same direction as the cutter;

At the upper portion and in the side wall of the receptacle is an overflow opening I and this opening is connected by an overflow drain 8 with the aforementioned. drain pipe 6 leading to the sewer, or other suitable discharge.

Fig, 3 shows a modified form in which the water pipe, designated H, is also connected tangentially with the side wall of the receptacle, but in such manner that the flow thereof is in the same direction as the rotation of the cutter.

In the modification shown inFig. 4, the over fiow drain opening I and pipe 8 are omitted and the overflow water is forced through the discharge opening i out of the drain pipe 0. In order to force the water through thelatter opening, the cover, designated 2|, is secured over the upper opening l of the receptacle and removably locked in place by any suitable means, such as a bayonet lock 22. Such closing of the cover 2| allows a pressure to be built up within the receptacle in order to force the overflow water, and also'the cut and comminuted product, through the discharge opening.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

I claim:

, 1. In a garbage disposal apparatus, a receptacle having a garbage-receiving opening at its upper portion, said receptacle having a dis-- charge opening in the bottom of the receptacle,

at one side only of the center of the bottom, and a discharge drain connected to the discharge opening, a cutter positioned over the discharge opening, said cutter being rotatable about a vertical axis, means for rotating the cutter, and a supply of water, under pressure, connected tangentially through the side wall of the receptacle, the water-connection being capable of rotating the garbage in the receptacle in a direction opposite to the direction of rotation of the cutter, said cutter having deflecting surfaces operative to direct the water and cut material downwardly through said discharge opening.

2. In a garbage disposal apparatus, a receptacle having -,a garbage-receiving opening at its upper portion, said receptacle having a discharge opening in the bottom of the receptacle at one side onlyof the center of the bottom, and a discharge drain connected" to the discharge opening, a cutter positioned over the discharge opening, said cutter being rotatable about a vertical axis, means for rotating the cutter, and a supply of water, under pressure, connected tangentially through the lower portion of. the side wall of the receptacle, the water-connection being capable of rotating the garbage in the receptacle in a direction opposite to the direction of rotation of the cutter, said cutter having deflecting surfaces operative to direct the water and cut material downwardly through said discharge opening.

FRANK R. CHESTER.

REFERENCES CITED The following references are of record in .the file of this patent:

UNITED STATES PATENTS Number Name Date 996,957 Wallick July 4, 1911 1,174,656 'Backwith Mar. 7, 1916 1,906,609 Jahn May 2, 1933 1,977,320 McKinney Oct. 16, 1934 2,012,680 Hammes Aug. 27, 1935 2,106,851 Nordell Feb. 1, 1938 2,156,075 Alexay Apr. 25, 1939 2,166,786 Alexay July 18, 1939 2,220,729 Powers Nov. 5, 1940 2,339,961 Stevenson Jan. 25, 1944 2,453,006 Feight Nov. 2, 1948 2,464,588 Knudsen et al. Mar. 15, 1949 2,469,205 Powers May 3, 1949 

